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Vision testing device and head-mount type display device

a technology of display device and test device, which is applied in the field of vision testing device and head-mounted display device, can solve the problem of not getting accurate test results, and achieve the effect of reducing the work load of the tester involved in the positional adjustment of the main body of the devi

Inactive Publication Date: 2019-07-16
CREWT MEDICAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention reduces the workload of a tester who adjusts the position of a device used for vision testing. This is because the device is mounted on the testee's head.

Problems solved by technology

In this case, if the vision test is performed as it is, an accurate test result can not be obtained.

Method used

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  • Vision testing device and head-mount type display device
  • Vision testing device and head-mount type display device
  • Vision testing device and head-mount type display device

Examples

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Embodiment Construction

[0041]Embodiments of the present invention will be described hereafter in detail, with reference to the drawings.

[0042]In the description of the embodiments of the present invention, explanation will be given in the following order.[0043]1. Configuration of a vision testing device[0044]2. Vision testing method based on a vision testing mode[0045]3. Positional adjustment method of a device main body based on an alignment mode[0046]4. Effect of an embodiment[0047]5. Other embodiment[0048]6. Modified example, etc.

[0049]FIG. 1 is a schematic view of a vision testing device according to an embodiment of the present invention.

[0050]A vision testing device 1 shown in the figure is a head-mount type vision testing device used by being mounted on a head 3 of a testee 2. The vision testing device 1 roughly includes a device main body 5 and a mounting fixture 6 mechanically connected to the device main body 5.

[0051]The device main body 5 includes a casing 7 having a space inside. An internal s...

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Abstract

A head mount-type vision testing device, which is a head-mount type vision testing device mounted on a testee's head, including: a device main body having display devices for displaying a visual target for the testee and imaging devices for imaging eyeballs of the testee; a mounting fixture for mounting the device main body on the testee's head; and a controller that displays images of the eyeballs imaged by the imaging devices on the display devices, so that the testee can recognize a positional displacement state of the eyeballs caused by a positional displacement of the device main body mounted on the testee's head using the mounting fixture.

Description

TECHNICAL FIELD[0001]The present invention relates to a vision testing device and a head-mount type display device.DESCRIPTION OF RELATED ART[0002]There is a “vision test” as one of eye tests, for testing a visual function of an eye. Also, there is a “visual field test” as a typical vision test. The visual field test is performed for diagnosis of visual field narrowing, visual field defect, and the like caused by, for example, glaucoma, retinal detachment and the like, and various testing devices have been proposed for this purpose.[0003]Further, among conventional vision testing devices, there is a head-mount type vision testing device which is used by being mounted on a testee's head (for example, see patent documents 1 and 2). In this kind of vision testing device, when the vision testing device is mounted on the testee's head, for example, the vision testing device is tilted and a position of an eyeball of the testee is displaced from a specific predefined position in some cases...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): A61B3/10A61B3/032A61B3/15G02B27/01A61B3/024A61B3/00A61B3/14A61B90/50
CPCA61B3/005A61B3/0058A61B3/0091A61B3/024A61B3/14A61B3/152G02B27/0172A61B3/032A61B2090/502
Inventor INOUE, SATOSHIYAMANAKA, KENZOKIMURA, SHINJI
Owner CREWT MEDICAL SYST